Patents by Inventor Archisman Bagchi

Archisman Bagchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8298896
    Abstract: Systems and methods for raised source/drain with super steep retrograde channel are described. In accordance with a first embodiment, a semiconductor device comprises a substrate comprising a surface and a gate oxide disposed above the surface comprising a gate oxide thickness. The semiconductor device further comprises a super steep retrograde channel region formed at a depth below the surface. The depth is about ten to thirty times the gate oxide thickness. Embodiments may provide a more desirable body biasing voltage to threshold voltage characteristic than is available under the conventional art.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: October 30, 2012
    Inventors: James B. Burr, Archisman Bagchi, Jawad Nasrullah
  • Publication number: 20110300681
    Abstract: Systems and methods for raised source/drain with super steep retrograde channel are described. In accordance with a first embodiment, a semiconductor device comprises a substrate comprising a surface and a gate oxide disposed above the surface comprising a gate oxide thickness. The semiconductor device further comprises a super steep retrograde channel region formed at a depth below the surface. The depth is about ten to thirty times the gate oxide thickness. Embodiments may provide a more desirable body biasing voltage to threshold voltage characteristic than is available under the conventional art.
    Type: Application
    Filed: August 22, 2011
    Publication date: December 8, 2011
    Inventors: James B. Burr, Archisman Bagchi, Jawad Nasrullah
  • Patent number: 8003471
    Abstract: Systems and methods for raised source/drain with super steep retrograde channel. In accordance with a first embodiment of the present invention, in one embodiment, a semiconductor device comprises a substrate comprising a surface and a gate oxide disposed above the surface comprising a gate oxide thickness. The semiconductor device further comprises a super steep retrograde channel region formed at a depth below the surface. The depth is about ten to thirty times the gate oxide thickness. Embodiments in accordance with one embodiment may provide a more desirable body biasing voltage to threshold voltage characteristic than is available under the conventional art.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: August 23, 2011
    Inventors: James B. Burr, Archisman Bagchi, Jawad Nasrullah
  • Publication number: 20100159662
    Abstract: Systems and methods for raised source/drain with super steep retrograde channel. In accordance with a first embodiment of the present invention, in one embodiment, a semiconductor device comprises a substrate comprising a surface and a gate oxide disposed above the surface comprising a gate oxide thickness. The semiconductor device further comprises a super steep retrograde channel region formed at a depth below the surface. The depth is about ten to thirty times the gate oxide thickness. Embodiments in accordance with one embodiment may provide a more desirable body biasing voltage to threshold voltage characteristic than is available under the conventional art.
    Type: Application
    Filed: March 1, 2010
    Publication date: June 24, 2010
    Inventors: James B. Burr, Archisman Bagchi, Jawad Nasrullah
  • Patent number: 7683442
    Abstract: Systems and methods for raised source/drain with super steep retrograde channel. In accordance with a first embodiment of the present invention, in one embodiment, a semiconductor device comprises a substrate comprising a surface and a gate oxide disposed above the surface comprising a gate oxide thickness. The semiconductor device further comprises a super steep retrograde channel region formed at a depth below the surface. The depth is about ten to thirty times the gate oxide thickness. Embodiments in accordance with the present invention may provide a more desirable body biasing voltage to threshold voltage characteristic than is available under the conventional art.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: March 23, 2010
    Inventors: James B. Burr, Archisman Bagchi, Jawad Nasrullah